Patent US3253390A successfully refreshed from Google Patents.
US3253390A
Expired / Lapsed
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Dehydration of gases and regeneration of desiccant
Assignee: Phillips Petroleum Co
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Filing: 1963-07-29
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Granted: 1966-05-31
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 James S Connors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:21
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PROCESS FOR THE DEHYDRATION OF GASES CONTAINING MOISTURE, WHICH PROCESS COMPRISES: MIXING SAID GASES WITH A LIQUID DISICCANT TO FORM A MIXTURE; COOLING SAID MIXTURE TO A TEMPERATURE SUFFICIENT TO CAUSE CONDENSATION OF A PORTION OF SAID GASES AND FORM A CONDENSATE; PASSING SAID COOLED MIXTURE TO A PHASE SEPARATION ZONE AND THEREIN SEPARATING SAME INTO A SUBSTANTIALLY DRY GAS PHASE, A CONDENSATE PHASE, AND A WET DESICCANT PHASE CONTAINING DISSOLVED HYDROCARBONS; PASSING SAID WET DESICCANT PHASE TO AN UPPER PORTION OF A DESICCANT REGENERATION ZONE; IN SAID REGENERATION ZONE, APPLYING SUFFICIENT HEAT TO SAID WET DESICCANT PHASE TO CAUSE SEPARATION OF DISSOLVED HYDROCARBONS AND WATER VAPOR THEREFROM TO PRODUCE A LIQUID HYDROCARBON PHASE AND A REGENERATED DESICCANT PHASE; REMOVING THE SEPARATED WATER VAPOR FROM AN UPPER PORTION OF THE REGENERATION ZONE; WITHDRAWING SAID HYDROCARBON PHASE AND SAID REGENERATED DESICCANT PHASE FROM SAID REGENERATION ZONE AS SEPARATE STREAMS; AND RECYCLNG SAID REGENERATED DESICCANT TO SAID MIXING STEP.
Claim 2
Dependent Claim
158 words
A PROCESS FOR THE DEHYDRATION OF GASES CONTAINING MOISTURE, WHICH PROCESS COMPRISES: MIXING SAID GASES WITH A LIQUID DISICCANT TO FORM A MIXTURE; COOLING SAID MIXTURE TO A TEMPERATURE SUFFICIENT TO CAUSE CONDENSATION OF A PORTION OF SAID GASES AND FORM A CONDENSATE; PASSING SAID COOLED MIXTURE TO A PHASE SEPARATION ZONE AND THEREIN SEPARATING SAME INTO A SUBSTANTIALLY DRY GAS PHASE, A CONDENSATE PHASE, AND A WET DESICCANT PHASE CONTAINING DISSOLVED HYDROCARBONS; PASSING SAID WET DESICCANT PHASE TO AN UPPER PORTION OF A DESICCANT REGENERATION ZONE; IN SAID REGENERATION ZONE, APPLYING SUFFICIENT HEAT TO SAID WET DESICCANT PHASE TO CAUSE SEPARATION OF DISSOLVED HYDROCARBONS AND WATER VAPOR THEREFROM TO PRODUCE A LIQUID HYDROCARBON PHASE AND A REGENERATED DESICCANT PHASE; REMOVING THE SEPARATED WATER VAPOR FROM AN UPPER PORTION OF THE REGENERATION ZONE; WITHDRAWING SAID HYDROCARBON PHASE AND SAID REGENERATED DESICCANT PHASE FROM SAID REGENERATION ZONE AS SEPARATE STREAMS; AND RECYCLNG SAID REGENERATED DESICCANT TO SAID MIXING STEP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |